CFD usage in Alstom ECS - Chalmers · CFD usage in Alstom ECS Ali Tabikh 05 2006. Date of last...
Transcript of CFD usage in Alstom ECS - Chalmers · CFD usage in Alstom ECS Ali Tabikh 05 2006. Date of last...
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CFD usage in Alstom ECS
Ali Tabikh
05 200605 2006
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Date of last change Reference/Name of Presentation/SN 2
SIAMUF
Alstom History Alstom Business areas…….. About Environmental Control Systems (ECS) , Växjö
– Electrostatic Precipitators (ESP)– Wet Flue Gas Desulphurisation (WFGD)– Dry Flue Gas Desulphurisation (DFGD)– Selective Catalytic Reduction (SCR)– Dioxines… and CO2 reduction
Modelling in Alstom– Physical Modelling– CFD Modelling
• CFD as a design tool
Discussions
Summary
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Date of last change Reference/Name of Presentation/SN 3
Alstom History
GEC-ALSTHOM
3
ALSTHOMALSTHOM
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Date of last change Reference/Name of Presentation/SN 4
ALSTOM
Global specialist in Global specialist in infrastructureinfrastructure for for energyenergy and transport and transport4
Transport Marine
T & D
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Date of last change Reference/Name of Presentation/SN 5
ALSTOM today
Sales €13.7 bn*
Orders €15.8 bn*
Employees 64 000
Present in 70 countries
Power
* FY 2004/05 figures
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Date of last change Reference/Name of Presentation/SN 6
ALSTOMPower
ALSTOMT&D
ALSTOMTransport
ALSTOMSverige
6
Astom Sverige
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Date of last change Reference/Name of Presentation/SN 7
Anställda i Sverige 3 000varav:
• Industriturbiner 2 100
• Customer Service 450
• Hydro Systems 180
• Boiler & Environment 140
• T&D 130
Anställda i Sverige 3 000varav:
• Industriturbiner 2 100
• Customer Service 450
• Hydro Systems 180
• Boiler & Environment 140
• T&D 130
Orter med mer omfattandeverksamhet
Övriga orter
Alstom Sweden
7
Orderingång €725 M. 01/02Orderingång €725 M. 01/02
VVääxjxjöö
Stockholm
Luleå
Skellefteå
Sundsvall
Gävle
VästeråsStorforsStorfors
Ludvika Enköping
ÖÖrebrorebro
GGööteborgteborg
MalmMalmöö
FinspFinspåångng
KarlstadKarlstadVäxjö
FinspFinspåångng
VVäästersterååss
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Date of last change Reference/Name of Presentation/SN 8
VVääxjxjöö8
Products and Services
Environmental ControlSystems
– Particulate cleaning systems
– Flue gas cleaning systems
– "Waste-to-Energy"
– Service & maintenance
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Date of last change Reference/Name of Presentation/SN 9
Electrostatic Precipitator (ESP)
Particulate cleaning systems
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Date of last change Reference/Name of Presentation/SN 10
ESP Principle
Discharge electrodes Discharge electrodes
Dust-laden gas
Dust particles
Collected dust
Clean gas
Collecting electrodes
Corona
90B03CSP/06-97
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Date of last change Reference/Name of Presentation/SN 11
Fabric Filter
Particulate cleaning systems
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Date of last change Reference/Name of Presentation/SN 12
WFGD
Air
LimestoneForced Oxidation
Mill
ME Wash
Water
Cake Wash(Optional)
PrimaryDewatering
SecondaryDewatering
Fabric FilterOr ESP
Absorber
ReclaimWaterTank
Make-UpWaterTank
GYPSUM
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Date of last change Reference/Name of Presentation/SN 13
WFGD
ReagentPreparationSystem
AbsorberVessel
Dewatering Area
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Date of last change Reference/Name of Presentation/SN 14
DFGD
NID system
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Date of last change Reference/Name of Presentation/SN 15
DFGD (SDA)
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Date of last change Reference/Name of Presentation/SN 16
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Date of last change Reference/Name of Presentation/SN 17
Modelling and Pilot Testing
Physical Modelling
CFD Modelling
Pilot Testing
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Date of last change Reference/Name of Presentation/SN 18
Physical Modelling
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Date of last change Reference/Name of Presentation/SN 19
CFD Modelling
Single phase – ESP ( flow distribution prediction)
– Fabric Filter ( Flow distribution and pressure drop)
– SCR ( Flow, NH3, NOX, and Temperature distribution)
– Gas mixing
Multiphase – SCR ( Ash Capture, NH3 direct injection)
– DFGD ( SDA )
– SWFGD (Flue gas conditioning)
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Date of last change Reference/Name of Presentation/SN 20
CFD Modelling
Single phase
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Date of last change Reference/Name of Presentation/SN 21
CFD Modelling
Multiphase
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Date of last change Reference/Name of Presentation/SN 22
Pilot Testing
Multiphase Validation
Level z = -100 mm
-25
-20
-15
-10
-5
0
5
10
15
20
-0.65 -0.45 -0.25 -0.05 0.15 0.35 0.55
Distance from centerline [m]
[m/s
]
Velocity u, CFD Velocity u, meas
Level z= -100 mm
-35
-30
-25
-20
-15
-10
-5
0
5
10
-0.65 -0.45 -0.25 -0.05 0.15 0.35 0.55
Distance from centerline [m]
[m/s
]
Velocity w, CFD Velocity w, meas
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Date of last change Reference/Name of Presentation/SN 23
Pilot Testing
Multiphase Validation
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Date of last change Reference/Name of Presentation/SN 24
Conclusions
More validation is needed
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www.alstom.com